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Last updated 2025-05-15 UTC.
[null,null,["Last updated 2025-05-15 UTC."],[],[],null,["# androidx.car.app.messaging.model\n================================\n\n*** ** * ** ***\n\n[Kotlin](/reference/kotlin/androidx/car/app/messaging/model/package-summary \"View this page in Kotlin\") \\|Java\n\nInterfaces\n----------\n\n|----------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------|\n| [ConversationCallback](/reference/androidx/car/app/messaging/model/ConversationCallback) | Host -\\\u003e Client callbacks for a [ConversationItem](/reference/androidx/car/app/messaging/model/ConversationItem) |\n| [ConversationCallbackDelegate](/reference/androidx/car/app/messaging/model/ConversationCallbackDelegate) | Used by the host to invoke [ConversationCallback](/reference/androidx/car/app/messaging/model/ConversationCallback) methods on the client |\n\nClasses\n-------\n\n|--------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------|\n| [CarMessage](/reference/androidx/car/app/messaging/model/CarMessage) | Represents a single message in a [ConversationItem](/reference/androidx/car/app/messaging/model/ConversationItem) |\n| [CarMessage.Builder](/reference/androidx/car/app/messaging/model/CarMessage.Builder) | A builder for [CarMessage](/reference/androidx/car/app/messaging/model/CarMessage) |\n| [ConversationItem](/reference/androidx/car/app/messaging/model/ConversationItem) | Represents a text-based conversation (e.g. IM/SMS messages). |\n| [ConversationItem.Builder](/reference/androidx/car/app/messaging/model/ConversationItem.Builder) | A builder for [ConversationItem](/reference/androidx/car/app/messaging/model/ConversationItem) |"]]
